Hydraulic motor



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(No Model.)

PaltentedNov. 26,

UNITED STATES PATENT OFFICE.

JOHN lV. GARRE'FT, JR., OF SPARTANBURG, SOUTII CAROLINA.

HYDRAULIC MOTOR.

SPECIFICATION forming part of Letters Patent No. 416,033, dated November 26, 18829. Application led May 9, 1889. Serial No. 310,191. (No model.)

ple and comparatively inexpensive appara-` tus whereby spring-water may be driven from a lower to a higher level, inorder to obtain a head or pressure for the supply of the service-pipes.

It is my purpose also to provide means whereby a hydraulic motor may be operated from a stream giving a limited flow of water, or from a supply-tank iilled by means ot mains wherein the flowis gaged by a meter, and in which the consumption must be economized to avoid expense, and to this end I propose to so organize the motor that a given percentage of the water actuating the same may be used more than once.

It is my purpose, linally, to so arrange the forcing mechanism that no power shall be required to lill the cylinder or pump-barrel as the pistcn-head rises therein; and to the several ends thus specified the invention consists in the novel features of construction and combination of devices hereinafter described and claimed.

In the accompanying drawings, Figure l is .a sectional elevation illustrating my invention. Fig. 2 is a similar view showing a modified construction. Fig. 3 is a detail perspective showing the supplying cross-head.

In the said drawings, the reference-numcral l designates a tank or other suitable receptacle, to which water from a spring or other source is supplied by any known means. lVithin this tank, and resting upon the bottom or upon supports below the normal waterlevel, I arrange two pump-cylinders 2, each having a flap-valve 3 in the bottom, through which the water of the tank enters by its own natural tendency to seek its level. The two cylinders are connected by a pipe 4, from which rises a-vertical pipe 5, check-valves 6 being placed in the ends of the pipe 4, and so arranged as to open in one end and close in the other as the piston-head descends in either cylinder to allow the water below the piston to be forced through the pipe 5. Mounted upon the piston-rods 7, which rise above the cylinders, are buckets 8, of a suitable size, the piston-rods passing through the bottoms ot the buckets and rising above their open tops. The ends of these rods are connected by a cord', chain, or wire 9, attached to eyes l0, and passing over pulleys l2, which are suspended from a supporting-frame I3, rising to a suitable distance above the tank I.v In the bottom of each bucket is a valve let, ot' any suitable torni, which is opened by a cord or chain I5, attached to the valve andat the-other end to the hangers carrying the pulleys l2, or to any other part ofthe frame I3, the length of said cords or chains being such that as the piston-head and bucket sink to the lowest limit of the stroke the cord will be drawn taut and will open the valve, permitting the contents of the bucket to escape. Upon each bucket is mounted aguiderod IG, running in a bracket 17 on the frame I3 to prevent rotary displacement.

The buckets S are-tilled alternately by a pipe 18, which derives its supply from any desired or convenient source having a sufficient head to bring Athe water to a point just above the highest points reached by the buckets upon their upward stroke. Upon the end of the pipe I8 is mounted a T-headsupply-pipe l0, the arms whereof have free communica tion with the pipe. This head is so connected that it may have rotary movement upon the .pipe IS, to raise or lower either arm alternately. A pivot 2O projects from the center ofthe T-head supply-pipe, and is seated in any suitable support 21, attached to the frame I3. y

Connected to each arm of the T-head supply-pipe I9 by means of an eye 22 is a cord or chain 23, the other end whereof' is attached to a similar eye 24 on the bucket,

which lies beneath the opposite arm of the T-head supply-pipe. The length of these cords or chains is such that as the buckets appreach the lowest limit of their stroke said cords will tighten and rock the T-head supply-pipe, as shown in Fig. 1. By this movement the stream is diverted from the descended bucket to the empty bucket, which ICO lies directly beneath the lower end of the T- head supply-pipe.

Upon a bracket 25, closely adjacent to each bucket, is mounted a spring-actuated.slidebar 26, the end of which lics beneath a lug or shoulder 27 on the outer face of the bucket. To the other end of the slide-'bar is attached one end of a cord or chain 2S, running over a pulley 29, and havin g at its other end a bucket 30. This bucket is provided withan outlet- Valve 31 in its bottom, operated by a cord or chain 32, attached to the bracket supporting the pulleyT 29. At or near the top of the bucket is a discharge-pipe 33, which is so inclined that when the bucket is locked by the slide-bar 26 the discharge end of the pipe will overhang; the bucket 30.

The operation of the devices is as follows: Vater flowing through the T-head supplypipe 1) into the upper bucket. fills the same until the water rises to the mouth of the exitpipe 33, whereupon the surplus runs through said pipe into the bucket 30. As the latter fills, its weight draws the slide-bar 2G and releases the bucket 8, which at once descends, forcing the water out of the pump-cylinder through the vertical pipe 5 and raising the other empty bucket. As the latter reaches the limit of its upward movement its shoulder or lu g 27 engages the beveled end of the slide-bar 26, pushing it back to permit the shoulder to pass and then snapping under the same. At the same moment the descent of the other bucket draws taut the chain or cord 23 and rocks the T-head supply-pipe 19 into position to discharge into the empty bucket, while the chain 15, being simultaneously drawn tight, opens the valve 14 in the bottom of the descended bucket and discharges the contents of the latter. As the bucket 30, which actuat es the slide-bar 26, drops downward its outlet-valve is opened by the cord or chain 2S until the bucket is sufficiently light-cned to permit the spring 26IL to raise it and shoot the slide-bar in its normal position.

Instead of the double acting apparatus shown,I may employ the single device shown in Fig. 2. In this modification the cylinder 2, piston-rod 7, and the rising and falling bucket 8, mounted on t-he piston-rod, are the same as the corresponding parts already described,as also are the locking slide-bar 2G and its parts and the outlet-valve in the buckets 8 and 30. The sole alteration is that the piston-rod 7 is connected by the cord orchain 9 to a bucket 34, which has all the functions of the du piicate bucket 8 in Fig. 1, save that it does not actuate a piston or pump rod, but is used simply to raise the empty bucket 8.

This invention may be used advantageously to force spring-water to higher levels in localities where the supply is limited and Where no sufcient head is found for a hy* draulic ram. It will be seen, also, that a certain percentage of the water used in the buckets 8 may be pumped by the apparatus to only till without the exertion of power, but A will tend to slightly aid the pistons in rising.

The pu nip-cylinder may be placed in a tank of mineral water, and the apparatus may be operated by the water of abranch near by to force the mineral water to a hotel or other point desired.

Vhat I claim as my invention is- 1. In a hydraulic motor, the combination, with a pump-cylinder having an inlet-valve in its bottom, of a piston rod, a bucket mounted thereon and provided with an exit- Valve in its bottom connected by a chain or cord to a support above the bucket, a counterbalancing-bucket having a similar valve, and a rocking T-head supply-pipe arranged above said buckets and connected by chains cr cords to both, substantially as described.

2. In a hydraulic motor, the combination,

with a pump-cylinder having an inlet-valve in its bottom, of a piston-rod, a bucket mounted thereon and provided with an outlet-valve in its bottom connected with a support above by a chain or cord, a counterbalancing-bucket connected to the first bucket by a cord or chain passing over pulleys and having a similar outlet-valve in its bottom, a water-supply pipedischarging above said buckets, and a T-head supply-pipe com municating with said pipe and rocking thereon, each end of said T-head supply-pipe being connected by a cord or chain to the bucket lying beneath the other end, substantially as described. y

In a hydraulic motor, the combination, with a tank, of cylinders partly or wholly submerged therein and having inlet-valves in their bottoms, a service-pipe communicating with both cylinders, pistons rising and falling in the latter, buckets mounted on said rods and having outlet-valves in their bottoms connected by cords to a support above, said piston-rods being connected by a cord or chain passing over pulleys, a water-supply pipe having a rocking T-head supply-pipe connected by cords to said buckets and discharged therein alternately, spring-actuated slide-bars engaging lugs on the buckets as the latter rise, and buckets connected to said slide-bars by cords passing over guide-pulleys and having outlets actuated by cords, said buckets being filled by pipes opening from the piston-buckets at or near the top of the latter, substantially as described. In testimony whereof I have afxed my nature in presence of two witnesses.

JOHN IV. GARRETT, JR.

YVitnesses:

J AMES L. NoRRIs, JAMES A. RUTHERFORD.

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